{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,28]],"date-time":"2025-05-28T16:29:25Z","timestamp":1748449765149},"reference-count":10,"publisher":"SLACK, Inc.","issue":"11","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Refract Surg"],"published-print":{"date-parts":[[2009,11]]},"abstract":"<jats:sec>\n            <jats:title>Purpose:<\/jats:title>\n            <jats:p>To evaluate topographic patterns in keratoconic cases and to classify those topographic patterns according to different age groups.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods:<\/jats:title>\n            <jats:p>Four hundred eighty-two eyes of 251 patients with keratoconus were separated into 3 groups based on age. The age range of group 1 (younger) was &lt;21 years (83 eyes), group 2 (middle) was 21 to 40 years (362 eyes), and group 3 (older) was &gt;40 years (37 eyes). All patients underwent full ocular examination and Pentacam (Oculus Optikger\u00e4te GmbH) measurement. Topographic patterns were analyzed by comparing the results according to age groups.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results:<\/jats:title>\n            <jats:p>Distribution ratios of keratoconic eyes in the three age groups were 17.2% younger, 75.3% middle, and 7.5% older. The most frequent topographic patterns for those patients were vertical bowtie pattern (28.4%) in the younger group, inferior global cone pattern (23.7%) in the middle group, and inferotemporal global cone pattern (16.4%) in the older group. Temporal global cone pattern was more frequently seen among younger keratoconus patients\u201422% for the eyes in the younger group, 6.9% for the eyes in the middle group, and 11.1% for the eyes in the older group.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions:<\/jats:title>\n            <jats:p>In keratoconus, the steepest part of the cone can be located temporally, especially in younger patients, which is unusual. Younger candidates for refractive surgery should be screened for temporal forme fruste.<\/jats:p>\n            <jats:p>\n              [\n              <jats:italic>J Refract Surg.<\/jats:italic>\n              2009;25:1012\u20131016.]\n            <\/jats:p>\n          <\/jats:sec>","DOI":"10.3928\/1081597x-20091016-07","type":"journal-article","created":{"date-parts":[[2009,11,18]],"date-time":"2009-11-18T22:41:34Z","timestamp":1258584094000},"page":"1012-1016","source":"Crossref","is-referenced-by-count":16,"title":["Location of Steepest Corneal Area of Cone in Keratoconus Stratified by Age Using Pentacam"],"prefix":"10.3928","volume":"25","author":[{"given":"Aylin","family":"Ertan","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G\u00fcnhal","family":"Kamburoglu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joseph","family":"Colin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2308","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0039-6257(97)00119-7"},{"key":"e_1_3_2_3_2","first-page":"1","article-title":"Corneal topography and elasticity in normal and keratoconic eyes","volume":"193","author":"Edmund C","year":"1989","unstructured":"Edmund C. Corneal topography and elasticity in normal and keratoconic eyes. Acta Ophthalmol Suppl. 1989;193:1\u201336.","journal-title":"Acta Ophthalmol Suppl"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajo.2006.07.058"},{"key":"e_1_3_2_5_2","first-page":"644","article-title":"Collagen fibrils in the human corneal stroma: structure and aging","volume":"39","author":"Daxer A","year":"1998","unstructured":"Daxer A, Misof K, Grabner B, Ettl A, Fratzl P. Collagen fibrils in the human corneal stroma: structure and aging. Invest Ophthalmol Vis Sci. 1998;39:644\u2013648.","journal-title":"Invest Ophthalmol Vis Sci"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/0925-4439(92)90041-K"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0161-6420(80)35145-2"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9394(89)90001-9"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjo.80.7.610"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1097\/00003226-199101000-00002"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1001\/archopht.1981.03930011093022"}],"container-title":["Journal of Refractive Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.healio.com\/doiresolver?doi=10.3928\/1081597X-20091016-07","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,5,3]],"date-time":"2023-05-03T11:53:02Z","timestamp":1683114782000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.healio.com\/doi\/10.3928\/1081597X-20091016-07"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,11]]},"references-count":10,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2009,11]]}},"alternative-id":["10.3928\/1081597X-20091016-07"],"URL":"https:\/\/doi.org\/10.3928\/1081597x-20091016-07","relation":{},"ISSN":["1081-597X"],"issn-type":[{"value":"1081-597X","type":"print"}],"subject":[],"published":{"date-parts":[[2009,11]]}}}